:root{--primary:#8b5cf6;--secondary:#06b6d4;--success:#22c55e;--warning:#facc15;--danger:#fb7185;--orange:#fb923c;--pink:#ec4899;--bg:#f5f7ff;--card:#fff;--text:#1f2937;--muted:#64748b;--radius:26px;--shadow:0 16px 40px rgba(31,41,55,.14)}
*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,Nunito,system-ui,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}a{text-decoration:none;color:inherit}input,select,textarea{width:100%;padding:15px 16px;border:2px solid #e5e7eb;border-radius:18px;margin:8px 0 14px;font:inherit;background:#fff}textarea{min-height:110px}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:20px;padding:15px 22px;font-weight:800;cursor:pointer}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;box-shadow:0 12px 30px rgba(139,92,246,.28)}.card,.hero-card,.auth-card,.install-card{background:var(--card);border-radius:var(--radius);padding:22px;margin:16px 0;box-shadow:var(--shadow)}.hero-card{background:linear-gradient(135deg,#fff,#eef2ff)}.app-shell{max-width:520px;margin:0 auto;padding:16px 16px 100px}.topbar{display:flex;justify-content:space-between;align-items:center;margin:8px 0 16px}.topbar span{display:block;color:var(--muted);font-size:13px}.chip{border:0;border-radius:999px;padding:10px 13px;background:#fff;box-shadow:var(--shadow)}.ranking-card{display:flex;justify-content:space-between;align-items:center;padding:16px;border-radius:22px;margin:10px 0;font-weight:800}.rank-1{background:linear-gradient(135deg,#fde68a,#fb923c)}.rank-2{background:linear-gradient(135deg,#e2e8f0,#94a3b8)}.rank-3{background:linear-gradient(135deg,#fed7aa,#fb7185)}.rank-default{background:#eef2ff}.period-tabs{display:flex;gap:8px;overflow:auto}.period-tabs a{background:#fff;border-radius:999px;padding:10px 13px;font-weight:800;box-shadow:0 8px 18px rgba(0,0,0,.08)}.task-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.task-box{border:0;background:#fff;border-radius:26px;padding:22px;box-shadow:var(--shadow);font-size:28px}.task-box strong{display:block;font-size:15px;margin-top:8px}.alert{padding:14px;border-radius:18px;margin:12px 0;font-weight:800}.alert.success{background:#dcfce7;color:#166534}.alert.danger{background:#ffe4e6;color:#9f1239}.auth-bg{background:linear-gradient(135deg,#eef2ff,#cffafe)}.auth-shell,.install-shell{min-height:100vh;display:grid;place-items:center;padding:18px}.auth-card,.install-card{width:min(720px,100%)}.muted{color:var(--muted)}.check-list{display:grid;gap:8px}.check-item{padding:12px;border-radius:16px;background:#f8fafc}.check-item.ok{border-left:6px solid var(--success)}.check-item.bad{border-left:6px solid var(--danger)}